CN212898357U - Drill rod device for conveying double fluids - Google Patents
Drill rod device for conveying double fluids Download PDFInfo
- Publication number
- CN212898357U CN212898357U CN202021422157.0U CN202021422157U CN212898357U CN 212898357 U CN212898357 U CN 212898357U CN 202021422157 U CN202021422157 U CN 202021422157U CN 212898357 U CN212898357 U CN 212898357U
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- Prior art keywords
- drill rod
- connecting piece
- hollow
- fluid
- drill
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- Expired - Fee Related
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- 239000012530 fluid Substances 0.000 title claims abstract description 45
- 238000005553 drilling Methods 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 239000004568 cement Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 238000005507 spraying Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
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Abstract
The utility model provides a carry drilling rod device of biliquid for solve among the prior art biliquid rotary jetting drilling tool biliquid pipeline be convenient for the problem of maintenance. The drill rod device for conveying double fluids is characterized in that the hollow inner drill rod and the hollow outer drill rod are coaxial and are sleeved, the hollow inner drill rod and the hollow outer drill rod are simultaneously connected with an inner pipe for injecting a first fluid and an outer pipe for injecting a second fluid, the inner pipe and the hollow inner drill rod form a first fluid channel, and the annular gap between the outer pipe and the inner pipe and the annular gap between the outer drill rod and the inner drill rod form a second fluid channel to finish double fluid conveying. In the drill rod device for conveying double fluids, the drill rod is arranged to be hollow, the drill bit transmits power, and meanwhile, the drill rod device is also used as a double-fluid conveying pipeline, and through inner and outer annular conveying, one part of the fluid pressure of the inner pipe and the fluid pressure of the outer pipe are mutually offset, so that ultrahigh pressure conveying is realized, and the ultrahigh pressure conveying can reach 40 MPa; meanwhile, the uniform pressure transmission is ensured, and the rotary spraying efficiency and the reinforcing effect are improved.
Description
Technical Field
The utility model belongs to drilling tool equipment field, concretely relates to carry drilling rod device of biliquid.
Background
In the construction process of tunnel engineering, waterproof curtains or support piles, drilling and grouting are often needed, and single-fluid or double-fluid rotary jet drilling tools are generally adopted at present. In the prior art, a conveying pipeline is independently arranged in a double-liquid rotary jet drilling tool to finish conveying of fluid for reinforcement, a reinforcing material is conveyed to a drill bit through one or two pipelines, and then the reinforcement of a drill hole is finished through rotary jet. However, when high-pressure fluid is conveyed, the high-pressure pipeline which is required to be arranged can bear corresponding high pressure, and the requirement on the pipeline is high; meanwhile, when the pipeline is blocked, the pipeline needs to be taken out from the drilling tool for replacement, and the difficulty of equipment maintenance is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the fluid transportation problem of biliquid jet drilling tool, provide a carry drilling rod device of biliquid to the drilling rod of transmission power is the basis, regards the pipeline of carrying biliquid with the drilling rod simultaneously, reserves the jet of biliquid simultaneously, has guaranteed the even transmission of the super high pressure and the pressure that bear biliquid, improves and spouts soon and consolidate the effect.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a double-liquid conveying drill rod device comprises an outer pipe connecting piece, an inner pipe connecting piece, a hollow inner drill rod, an outer drill bit connecting piece, a hollow outer drill rod and an inner drill bit connecting piece; wherein,
the hollow outer drill rod and the hollow inner drill rod are coaxial and are sleeved outside the hollow inner drill rod;
one end of the outer pipe connecting piece is fixedly connected with the driving end of the drilling tool, and the other end of the outer pipe connecting piece is fixedly connected with the hollow outer drill rod;
one end of the inner pipe connecting piece is connected with an inner pipe of the first fluid injection end, the other end of the inner pipe connecting piece is connected with the hollow inner drill rod, the inner pipe is communicated with the inner cavity of the hollow inner drill rod, meanwhile, an annular gap formed by the hollow inner drill rod and the hollow outer drill rod is communicated with an annular gap formed by the outer pipe connecting piece and the inner pipe connecting piece, and the annular gap formed by the outer pipe connecting piece and the inner pipe connecting piece is connected with the second fluid injection end;
one end of the outer drill bit connecting piece is fixedly connected with the hollow outer drill rod, and the other end of the outer drill bit connecting piece is fixedly connected with the outer drill bit; one end of the inner drill bit connecting piece is fixedly connected with the hollow inner drill rod, and the other end of the inner drill bit connecting piece is fixedly connected with the inner drill bit.
In the above scheme, the fixed connection is a detachable connection.
In the above scheme, the detachable connection and the two ends of the fixed connection are both provided with the sawtooth-shaped clamping grooves which are connected in a sawtooth occlusion manner.
In the scheme, the lower end of the outer drill bit connecting piece is provided with an outer drill bit positioning groove; and an inner drill positioning groove is formed at the lower end of the inner drill connecting piece.
In the scheme, the first fluid is high-pressure water, and the second fluid is high-pressure cement slurry.
In the scheme, the high pressure is 10-40 MPa.
In summary, in the drill rod device for conveying double fluids according to the embodiment of the present invention, the hollow outer drill rod is coaxial with the hollow inner drill rod and is sleeved outside the hollow inner drill rod; one end of the outer pipe connecting piece is fixedly connected with the driving end of the drilling tool, and the other end of the outer pipe connecting piece is fixedly connected with the hollow outer drill rod; one end of the inner pipe connecting piece is connected with an inner pipe of the first fluid injection end, the other end of the inner pipe connecting piece is connected with the hollow inner drill rod, the inner pipe is communicated with the inner cavity of the hollow inner drill rod, meanwhile, an annular gap formed by the hollow inner drill rod and the hollow outer drill rod is communicated with an annular gap formed by the outer pipe connecting piece and the inner pipe connecting piece, and the annular gap formed by the outer pipe connecting piece and the inner pipe connecting piece is connected with the second fluid injection end; one end of the outer drill bit connecting piece is fixedly connected with the hollow outer drill rod, and the other end of the outer drill bit connecting piece is fixedly connected with the outer drill bit; one end of the inner drill bit connecting piece is fixedly connected with the hollow inner drill rod, and the other end of the inner drill bit connecting piece is fixedly connected with the inner drill bit. In the drill rod device for conveying double fluids, the drill rod is arranged to be hollow, the drill bit transmits power, and meanwhile, the drill rod device is also used as a double-fluid conveying pipeline, and through inner and outer annular conveying, one part of the fluid pressure of the inner pipe and the fluid pressure of the outer pipe are mutually offset, so that ultrahigh pressure conveying is realized, and the ultrahigh pressure conveying can reach 40 MPa; meanwhile, the uniform pressure transmission is ensured, and the rotary spraying efficiency and the reinforcing effect are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a drill rod device for conveying double fluids according to an embodiment of the present invention.
Description of reference numerals:
1. an outer tube connector; 2. an inner tube connector; 3. a hollow inner drill rod; 4. an outer bit connector; 5. a hollow outer drill rod; 6. an inner bit connector; 7. an outer drill bit locating slot; 8. and an inner drill bit positioning groove.
Detailed Description
The technical problems, technical solutions and advantages of the present invention will be described in detail below with reference to exemplary embodiments and with reference to the accompanying drawings. The exemplary embodiments described below are only for explaining the present invention and should not be construed as limiting the present invention. It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
The embodiment of the utility model provides a carry drilling rod device of biliquid for among biliquid jet grouting drilling tool. Fig. 1 is a schematic structural diagram of the drill rod device for conveying double fluids. As shown in fig. 1, the double-liquid conveying drill rod device comprises an outer pipe connecting piece 1, an inner pipe connecting piece 2, a hollow inner drill rod 3, an outer drill bit connecting piece 4, a hollow outer drill rod 5 and an inner drill bit connecting piece 6, wherein the hollow outer drill rod 5 is coaxial with the hollow inner drill rod 3 and is sleeved outside the hollow inner drill rod 3. One end of the outer pipe connecting piece 1 is fixedly connected with the driving end of the drilling tool, and the other end of the outer pipe connecting piece is fixedly connected with the hollow outer drill rod 5; one end of the inner pipe connecting piece 2 is connected with an inner pipe of the first fluid injection end, the other end of the inner pipe connecting piece is connected with the hollow inner drill rod, the inner pipe is communicated with the inner cavity of the hollow inner drill rod 3, meanwhile, an annular gap formed by the hollow inner drill rod 3 and the hollow outer drill rod 5 is communicated with an annular gap formed by the outer pipe connecting piece 1 and the inner pipe connecting piece 2, and the annular gap formed by the outer pipe connecting piece 1 and the inner pipe connecting piece 2 is connected with the second fluid injection end. One end of the outer drill bit connecting piece 4 is fixedly connected with the hollow outer drill rod, and the other end of the outer drill bit connecting piece is fixedly connected with an outer drill bit; one end of the inner drill bit connecting piece 6 is fixedly connected with the hollow inner drill rod, and the other end of the inner drill bit connecting piece is fixedly connected with the inner drill bit.
In the above-mentioned embodiment, the lower end of the outer drill connecting piece 4 is provided with an outer drill positioning slot 7; and an inner drill positioning groove 8 is arranged at the lower end of the inner drill connecting piece 6.
In the above-mentioned embodiments, the fixed connection is a detachable connection. Preferably, both ends of the fixed connection are provided with saw-toothed clamping grooves which are connected in a meshing manner. The detachable connection of the hollow inner drill rod and the hollow outer drill rod can facilitate the detachment. When the fluid in the device is blocked, the device can be repaired without replacement through disassembly and cleaning.
In the embodiment described above, the first fluid is high pressure water and the second fluid is high pressure cement slurry. The high pressure here is greater than the standard atmospheric pressure. By the inner and outer annular conveying, one part of the fluid pressure of the inner pipe and the fluid pressure of the outer pipe are mutually offset, the ultrahigh pressure conveying is realized, and the ultrahigh pressure conveying can reach 40 MPa.
As described above, this embodiment carries drilling rod device of biliquid through setting up the drilling rod to the cavity formula, for the drill bit transmission power, still as the pipeline of biliquid, the superhigh pressure of biliquid is carried in the inside and outside annular realization, has guaranteed the even transmission of pressure simultaneously, has improved and has spouted efficiency soon and consolidate the effect.
The present invention has been described in detail with reference to the embodiments, but the description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention. The protection scope of the present invention is defined by the claims. Technical scheme, or technical personnel in the field are in the utility model technical scheme's inspiration the utility model discloses an essence and protection within range, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change that application scope was made and improve etc. all should still belong to within the protection scope is covered to the patent of the utility model. It should be noted that for the sake of clarity, parts of the description of the invention have been omitted which do not have a direct obvious relationship with the scope of protection of the invention, but which are known to the skilled person.
Claims (6)
1. The double-liquid conveying drill rod device is characterized by comprising an outer pipe connecting piece, an inner pipe connecting piece, a hollow inner drill rod, an outer drill bit connecting piece, a hollow outer drill rod and an inner drill bit connecting piece; wherein,
the hollow outer drill rod and the hollow inner drill rod are coaxial and are sleeved outside the hollow inner drill rod;
one end of the outer pipe connecting piece is fixedly connected with the driving end of the drilling tool, and the other end of the outer pipe connecting piece is fixedly connected with the hollow outer drill rod;
one end of the inner pipe connecting piece is connected with an inner pipe of the first fluid injection end, the other end of the inner pipe connecting piece is connected with the hollow inner drill rod, the inner pipe is communicated with the inner cavity of the hollow inner drill rod, meanwhile, an annular gap formed by the hollow inner drill rod and the hollow outer drill rod is communicated with an annular gap formed by the outer pipe connecting piece and the inner pipe connecting piece, and the annular gap formed by the outer pipe connecting piece and the inner pipe connecting piece is connected with the second fluid injection end;
one end of the outer drill bit connecting piece is fixedly connected with the hollow outer drill rod, and the other end of the outer drill bit connecting piece is fixedly connected with the outer drill bit; one end of the inner drill bit connecting piece is fixedly connected with the hollow inner drill rod, and the other end of the inner drill bit connecting piece is fixedly connected with the inner drill bit.
2. The dual fluid conveyance drill pipe apparatus of claim 1, wherein the fixed connection is a removable connection.
3. The dual fluid conveying drill pipe device as recited in claim 2, wherein the two detachably connected connection end surfaces are provided with corresponding saw-toothed clamping grooves, and the connection is performed in a saw-toothed engagement manner.
4. The apparatus according to any one of claims 1 to 3, wherein the lower end of the outer bit connector is provided with an outer bit positioning groove; and an inner drill positioning groove is formed at the lower end of the inner drill connecting piece.
5. The dual fluid conveyance pipe apparatus of claim 4, wherein the first fluid is high pressure water and the second fluid is high pressure cement slurry.
6. The dual fluid conveying drill pipe device as recited in claim 5, wherein the pressure of the high pressure water and the high pressure cement slurry is 10-40 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422157.0U CN212898357U (en) | 2020-07-17 | 2020-07-17 | Drill rod device for conveying double fluids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021422157.0U CN212898357U (en) | 2020-07-17 | 2020-07-17 | Drill rod device for conveying double fluids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212898357U true CN212898357U (en) | 2021-04-06 |
Family
ID=75288977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021422157.0U Expired - Fee Related CN212898357U (en) | 2020-07-17 | 2020-07-17 | Drill rod device for conveying double fluids |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212898357U (en) |
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2020
- 2020-07-17 CN CN202021422157.0U patent/CN212898357U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210406 |